| Main Entry: | main-sequence star |
| Part of Speech: | n |
| Definition: | any star lying on a diagonal band that extends from hot stars of high luminosity to cool stars of low luminosity; any stars in the Hertzsprung-Russell diagram from the upper left to the lower right of the diagram; also written main sequence star |
| Example: | Most stars in the Sun's neighborhood are main sequence stars. |
| a gadget; dingus; thingumbob. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
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